21660765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3079}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 40212480

約数和(自身を除く): 18551715

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 3079, 7035, 9237, 15395, 21553, 46185, 64659, 107765, 206293, 323295, 618879, 1031465, 1444051, 3094395, 4332153, 7220255, 21660765]

約数ペア:

[(1, 21660765), (3, 7220255), (5, 4332153), (7, 3094395), (15, 1444051), (21, 1031465), (35, 618879), (67, 323295), (105, 206293), (201, 107765), (335, 64659), (469, 46185), (1005, 21553), (1407, 15395), (2345, 9237), (3079, 7035)]